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Finding the Fourth Proportional to 15,920.01, 23,880.42 and 5,531.76

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Solution

The fourth proportional to 15,920.01, 23,880.42 and 5,531.76 is: 8,297.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,920.01 : 23,880.42 = 5,531.76 : x
  2. Step 2: Convert to fraction form
    15,920.01/23,880.42 = 5,531.76/x
  3. Step 3: Cross multiply
    15,920.01x = 23,880.42 × 5,531.76
  4. Step 4: Simplify right side
    15,920.01x = 132,100,752.14
  5. Step 5: Solve for x
    x = 132,100,752.14/15,920.01
  6. Step 6: Final answer
    x = 8,297.78

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